Improved car-axle-box lubricator



M. C.HUBBARD- Axl Bo'X Lubricator.

No. 87.777. Patented March 16, 1870.

- "Mf//W UNITED STATES PATENT OEEIGE MARK C. HUBBARD, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO ISAAC P. VENDELL, OF SAME PLACE, AND SAID WENDELL ASSIGNS ONE-HALF HIS RIGHT TO THOMAS SAYLES, OF CHICAGO, ILLINOIS.

IMPROVED CAR-AXLE-BOX LUBRICATOR.

Specification forming part of Letters Patent No. 87,777, dated March 16, 1869.

To all whom it may concern Beit known that I, MARK G. HUBBARD, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Lubricating OarJoiirnals; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in the arrangement of a wick, curled hair, or other iibrous material, contained in a recessed plate or chamber beneath the journal, and the ends of the wick being extended into an oil-reser- .voir in such a man ner as to cause the tlow of the oil through the wick by capillary attraction to the said brous material, which, being kept thereby well saturated with the oil, evenly distributes the same upon the journal as the latter revolves.

The advantage gained by the interposition of curled hair or its equivalent between the journal and the wick is that the former does not become gummed up, as the latter would by constant contact with the journal.

Another advantage is that the curled hair or other iibrous material, such as felt, forms a soft pad in the recess or chamber F of the plate D, which absorbs a large amount of 'oil from the wick, so as to keep up an adequate supply to the journal under all circumstances, the supply being maintained for some time after the reservoir has been drained of its contents.

The construction and arrangement of the apparatus lwill be understood by the following description.

In the accompanying drawings, Figure 1 is a longitudinal section of an ordinary car-box with the improvement attached. Fig. 2 is a cross-section of the same at the line x .fr of Fig. 1.

Like letters in both figures indicate the same parts.

A is `an ordinary car-box, and B a journal. C G are brass journal-bearings. D is a curved plate, which is supported by means of the spring E, so as to gently touch the journal around the edges of the former. The plate has a chamber, F, throughout its whole length, as represented in Fig. 1, for the reception 'of the wick G and the surrounding curled hair or other fibrous material, as well as for thereception of waste oil from the journal, to assist in the constant lubrication of the latter.

The ends a a of the wick G are passed through the openings b b at the ends of the chamber F, and extend into the oil in the chamber H of the box A.

The operation is as follows: The chamber H being always supplied with oil as the journal B revolves, its whole surface, coming into contact with the fibrous material within the chamber F, has the oil evenly distributed upon it, the said material being kept saturated with oil from the chamber H by means of the capillary attraction of the wick G. The eX cess of oil taken up by the journal is returned to the chamber F continually, as the surface of the former comes into Contact with theV fibrous material within the latter and helps to keep up the lubrication. It will readily appear that, by the joint operation of the wick and hair, a constant and uniform supply of oil is kept up to the journal-and an even distribution.

If desired, the wick G may be arranged crosswise with the plate D, instead of longitudinally, as described. It may also, if desired, be placed on the bottom of the recess or chamber F, so as to have the whole mass of the curled hair between it and the journal.

I do not claim the wick separate from the curled hair or other iibrous material, having communication with a recessed plate and oilreservoir, as such an arrangement exists in other lubricators.

What I claim as my invention, and desire to secure by Letters Patent, is-

The curved plate D, having a tight chamber, F, for holding the oil for lubricating the journal, in combination With a pad of librous material, which has connection with thev oilreservoir by means of a Wick 0r \vicks,all constructed and arranged to operate substantially in the manner and for the purpose set forth.

In testimony that the above is my invention I have hereunto set my hand and affixed my seal this 4th day of September, 1868.

MARK C. HUBBARD. Witnesses:

STEPHEN UsTIoK, WM. LARZELERE. 

